Natalia Perez-Segnini is a NASM-certified personal trainer, a yoga instructor, a breathwork practitioner and a trauma-informed specialist. As a head coach at Tone House—a premier athletic-based ...

Tight hamstrings occur when one or all three of the muscles at the back of your thigh become shortened due to prolonged sitting, overtraining or sudden increase in workout workout intensity, certain ...

Prolonged desk work can lead to musculoskeletal problems ranging from annoying aches and pains to injuries. This month, we launched a six-part series showing you how to stretch and strengthen your ...

Beth Skwarecki is Lifehacker’s Senior Health Editor and has been writing about health, fitness, and science here since 2015. Beth was the recipient of the 2017 Carnegie Science Award in science ...

Open bodybuilder Martin Fitzwater smoked his hamstrings during a recent leg day training session ahead of the 2026 Arnold Classic.